Objective To build up performance appraisal indicators for triage nurses in outpatient clinic, and to improve the preciseness of performance appraisal for triage nurses. Methods The Delphi technique was used to construct the dimensions and evaluation indicators of performance appraisal for triage nurses in outpatient clinic. Results Through two rounds of consultations with 16 experts, the response rate of the questionnaire was 88.89% and 100% respectively; the authority coefficient was 0.91, and the coordination coefficient for first-level indicators was 0.345. Finally, five first-level indicators including work ability, work attitudes, work quality, team work awareness, and learning and growth, and 15 secondary indicators and 30 third-level indicators were established, and the corresponding weights were assigned to each indicator. Conclusion The performance appraisal indicators for triage nurses in outpatient clinic will help to make up the shortcomings of the existing assessment methods and give full incentive to the nurses, and improve the quality of outpatient nursing care.